Example for Configuring the Compatibility of the EtherType Field in the Outer Tag of QinQ Packets

This example shows how to configure the EtherType of an outer tag to enable the interworking between Huawei devices and non-Huawei devices.

Networking Requirements

PE2 is a Huawei device. PE1 and CE1 are non-Huawei devices. CE2 is a non-Huawei switch. Figure 1 shows the networking and the EtherType value in the outer tag of QinQ packets. In this situation, you can enable Huawei devices and non-Huawei devices to interwork with each other by setting the EtherType value in the outer tag of the interface on PE2.

Figure 1 Networking of configuring the compatibility of the EtherType field in the outer tag of QinQ packets

Interfaces 1 and 2 in this example represent GE 0/1/0 and GE 0/1/8, respectively.

Device Name	EtherType Value in the Outer Tag	Device Name	EtherType Value in the Outer Tag
PE1	0x9100	CE1	0x8100
PE2	0x8100	CE2	0x9100

Configuration Roadmap

The configuration roadmap is as follows:

Configure interfaces of PE2 that connect to the CEs as Layer 2 interfaces to ensure Layer 2 connectivity.
Configure the compatibility of the EtherType field in the outer tag of QinQ packets on the interface of PE2 that connects to CE2 to ensure that Huawei devices and non-Huawei devices can interwork with each other.

Data Preparation

To complete the configuration, you need the following data:

Name of the physical interface through which PE2 connects to non-Huawei devices
EtherType encapsulation value in the outer tag of non-Huawei devices

Procedure

Configure interfaces of PE2 that connect to the CEs as Layer 2 interfaces.

<HUAWEI> system-view
[~HUAWEI] sysname PE2
[*HUAWEI] commit
[~PE2] interface gigabitethernet 0/1/0
[*PE2-GigabitEthernet0/1/0] portswitch
[*PE2-GigabitEthernet0/1/0] undo shutdown
[*PE2-GigabitEthernet0/1/0] quit
[*PE2] interface gigabitethernet 0/1/8
[*PE2-GigabitEthernet0/1/8] portswitch
[*PE2-GigabitEthernet0/1/8] undo shutdown
[*PE2-GigabitEthernet0/1/8] quit
[*PE2] commit

Configure the compatibility of the EtherType field in the outer tag of QinQ packets on the interface of PE2 that connects to CE2.

[~PE2] interface gigabitethernet 0/1/0
[*PE2-GigabitEthernet0/1/0] qinq protocol 9100
[*PE2-GigabitEthernet0/1/0] quit
[*PE2] commit

Verify the configuration.

After the configurations are complete, run the display this command on GE 0/1/0 of PE2. The command output shows the information of the interface.

Run the display interface interface-type interface-number command on PE2. The command output shows the EtherType value of the outer VLAN tag.

[~PE2] display interface gigabitethernet0/1/0
GigabitEthernet0/1/0 current state : UP
Line protocol current state : UP (ifindex: 12)
Description: HUAWEI, Quidway Series, GigabitEthernet0/1/0 Interface
Switch Port, TPID : 9100(Hex), The Maximum Transmit Unit is 1500
Internet protocol processing : disabled
IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is 00e0-fc12-3456
Last physical up time   : 0000-00-00 00:00:00
Last physical down time : 0000-00-00 00:00:00
Current system time: 2012-06-28 03:59:19
Statistics last cleared:never
    Last 300 seconds input rate: 0 bits/sec, 0 packets/sec
    Last 300 seconds output rate: 0 bits/sec, 0 packets/sec
    Input peak rate 0 bits/sec, Record time: -
    Output peak rate 0 bits/sec, Record time: -
    Input: 0 bytes, 0 packets
    Output: 0 bytes, 0 packets
    Input:
      Unicast: 0 packets, Multicast: 0 packets
      Broadcast: 0 packets, JumboOctets: 0 packets
      CRC: 0 packets, Symbol: 0 packets
      Overrun: 0 packets, InRangeLength: 0 packets
      LongPacket: 0 packets, Jabber: 0 packets, Alignment: 0 packets
      Fragment: 0 packets, Undersized Frame: 0 packets
      RxPause: 0 packets
    Output:
      Unicast: 0 packets, Multicast: 0 packets
      Broadcast: 0 packets, JumboOctets: 0 packets
      Lost: 0 packets, Overflow: 0 packets, Underrun: 0 packets
      System: 0 packets, Overruns: 0 packets
      TxPause: 0 packets
    Last 300 seconds input utility rate:  0.00%
    Last 300 seconds output utility rate: 0.00%

Configuration file of PE2

#
 sysname PE2
#
interface GigabitEthernet 0/1/0
 portswitch
 undo shutdown
 qinq protocol 9100
#
interface GigabitEthernet 0/1/8
 portswitch
 undo shutdown
#
return